there was the fbi counterintelligence program which was actually quite successful doing a few things, installing the agent provocateurs that created some of the discord that exists now in the party between different factions. people were actually buying and part of what i write about in the book is the health programs there is a way the health programs respond to the fact members of the party were buying in conflict with the police and state authorities. politics just change so the party ends on the early 1980's and the world changed between 68 and 80. activists -- it's easier when you are 18 or 20 you don't have a mortgage or children, but the stakes can be often a lot lower for being an activist and the stakes of being an activist or high so part of it was aging and the national cycle of the organizations as well. >> coming up on the 50th anniversary of the black panther party is there another book from you? >> there isn't another book on the party but i continue to write about african-americans engagement with issues of health and science. >> alandra nelson that teaches sociology h